Module: Kumi::Core::IR::ExecutionEngine::Values

Defined in:
lib/kumi/core/ir/execution_engine/values.rb

Overview

Value constructors and helpers for VM data representation

Class Method Summary collapse

Class Method Details

.row(v, idx = nil) ⇒ Object

Create a row with optional index



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# File 'lib/kumi/core/ir/execution_engine/values.rb', line 29

def self.row(v, idx = nil)
  idx ? { v: v, idx: Array(idx) } : { v: v }
end

.scalar(v) ⇒ Object

Create a scalar value



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# File 'lib/kumi/core/ir/execution_engine/values.rb', line 10

def self.scalar(v)
  { k: :scalar, v: v }
end

.scalar?(val) ⇒ Boolean

Check if value is scalar

Returns:

  • (Boolean) 


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# File 'lib/kumi/core/ir/execution_engine/values.rb', line 34

def self.scalar?(val)
  val[:k] == :scalar
end

.vec(scope, rows, has_idx) ⇒ Object

Create a vector with scope and rows



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# File 'lib/kumi/core/ir/execution_engine/values.rb', line 15

def self.vec(scope, rows, has_idx)
  rank = if has_idx
           rows.empty? ? 0 : rows.first[:idx].length
         # TODO: > Make sure this is not costly
         # raise if rows.any? { |r| r[:idx].length != rank }
         # rows = rows.sort_by { |r| r[:idx] } # one-time sort
         else
           0
         end

  { k: :vec, scope: scope, rows: rows, has_idx: has_idx, rank: rank }
end

.vec?(val) ⇒ Boolean

Check if value is vector

Returns:

  • (Boolean) 


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# File 'lib/kumi/core/ir/execution_engine/values.rb', line 39

def self.vec?(val)
  val[:k] == :vec
end